Authors: St
- Reynolds, Stephen Sydney 1881-1919
- Richardson, Anna Steese 1865-1949
- Riggs, Arthur Stanley 1879-1952
- Riggs, Stephen Return 1812-1883
- Robbins, Sarah Stuart 1817-1910
- Roberts, E. S. (Ernest Stewart) 1847-1912
- Robertson-Aikman, T. S. (Thomas Stokes George Hughes) 1860-1948
- Robinson, Phil 1847-1902
- Robinson, Stephen L. (Telegrapher) -
- Robinson, Walter Stitt -
- Rodes, David Stuart -
- Roe, A. S. (Azel Stevens) 1798-1886
- Rogers, Walter S. (Walter Stanton) 1870-1937
- Rohrer, Steve -
- Romero, John Bruno -
- Roosevelt, Franklin D. (Franklin Delano) 1882-1945
- Roosevelt, Theodore 1858-1919
- Roscoe, Edward Stanley 1849-1932
- Rose, William Stewart 1775-1843
- Ross, J. Stuart (John Stuart) 1874-1944
- Rothamsted Experimental Station -
- Roth Quartet -
- Rudd, Steele 1868-1935
- Rudd, Stephen -
- Rudnytskyi, Stepan 1877-1937
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